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  • falter's Avatar
    Yesterday, 10:14 PM
    Interesting. I had a last minute thought. I swapped the old FDC chip back in. Drive stopped working, but keyboard worked! Wha... Luckily I...
    97 replies | 7486 view(s)
  • falter's Avatar
    Yesterday, 08:25 PM
    Okay so I got a replacement FDC9216 (or was it 8216) chip, and it boots! Fantastic! Thought I could finally put this together, get it off my bench...
    97 replies | 7486 view(s)
  • falter's Avatar
    Yesterday, 08:38 AM
    Thanks maxtherabbit! You're referring to the shaft and spring between the 'plate' and the cone? The cone looks like it goes down smoothly every...
    6 replies | 92 view(s)
  • falter's Avatar
    November 23rd, 2020, 08:09 PM
    Weird one - I'm trying to put this 5162 back together and away so I can finish rearranging my space, and I tried booting off the floppy drive, only...
    6 replies | 92 view(s)
  • falter's Avatar
    November 23rd, 2020, 02:17 PM
    falter replied to a thread Microkit 8/16 in Other
    Thanks Dave! Sorry I've dropped off on the Netronics setup! Work + covid have made things a little crazy. I appreciate your efforts with this. ...
    76 replies | 4973 view(s)
  • falter's Avatar
    October 31st, 2020, 10:53 AM
    falter replied to a thread Netronics Explorer 85 in Other
    Also it looks like there was some repair work done with the innermost S100 slot.. he's got jumper wires there that appear to connect the same points...
    25 replies | 905 view(s)
  • falter's Avatar
    October 31st, 2020, 10:49 AM
    falter replied to a thread Netronics Explorer 85 in Other
    Ok so we have a wire going from J2 pin 22 (? there aren't 24 pins but 24 is right next to the last pin in the line) to pin 33 of U105 We have a wire...
    25 replies | 905 view(s)
  • falter's Avatar
    October 29th, 2020, 10:49 PM
    I was looking at something like this: https://www.ebay.com/itm/293272782936 The Microbee uses an external brick supply, so I suppose that's...
    15 replies | 594 view(s)
  • falter's Avatar
    October 29th, 2020, 10:49 AM
    falter replied to a thread Netronics Explorer 85 in Other
    No worries. I think we have something custom going on here.. I'm poring over schematics and comparing to these jumper wires he has around. I note...
    25 replies | 905 view(s)
  • falter's Avatar
    October 29th, 2020, 08:29 AM
    falter replied to a thread Netronics Explorer 85 in Other
    Hi Dave, Unfortunately I had some family events so I didn't get to play with the Netronics machine much at all. I did install a 74LS20 (a few of...
    25 replies | 905 view(s)
  • falter's Avatar
    October 28th, 2020, 12:50 PM
    falter replied to a thread Netronics Explorer 85 in Other
    Yes switches are set as you prescribed. C000 is in U300.. and it goes on from there. Here's a pic of the full board: ...
    25 replies | 905 view(s)
  • falter's Avatar
    October 28th, 2020, 09:34 AM
    falter replied to a thread Netronics Explorer 85 in Other
    The EPROMs are four 2716s. I was comparing the first of them, labeled C000-C7FF to what is actually showing up at C000-C7FF.
    25 replies | 905 view(s)
  • falter's Avatar
    October 27th, 2020, 10:21 PM
    I just purchased some Microbee stuff and they are 220v. So I was wondering what I should be looking for in terms of wattage and quality for a 110v...
    15 replies | 594 view(s)
  • falter's Avatar
    October 27th, 2020, 08:35 PM
    falter replied to a thread Netronics Explorer 85 in Other
    Okay so I set the jumpers both ways you mentioned above... but yeah.. no change. I decided just to do some perfunctory checks and verified the...
    25 replies | 905 view(s)
  • falter's Avatar
    October 27th, 2020, 09:07 AM
    falter replied to a thread Netronics Explorer 85 in Other
    Thanks Dave. The revision of my board is D. I can edit memory contents in the space you mentioned.. just not anywhere else. Interestingly,...
    25 replies | 905 view(s)
  • falter's Avatar
    October 26th, 2020, 10:46 AM
    falter replied to a thread Netronics Explorer 85 in Other
    And yes, I can use the monitor and attempt to edit memory contents but at $0000 and most ranges I've tried I cannot actually edit anything. I'm...
    25 replies | 905 view(s)
  • falter's Avatar
    October 26th, 2020, 09:44 AM
    falter replied to a thread Netronics Explorer 85 in Other
    I am keeping well, all things considered. Trust same for you? And you don't owe me anything! But I very much appreciate your help and insight for...
    25 replies | 905 view(s)
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About falter

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About falter
Location:
Vancouver, BC

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Recent Entries

MPI 360k won't read/write

by falter on August 17th, 2019 at 11:18 AM
Quote Originally Posted by Chuck(G) View Post
I can't say that for certain. The head assembly is a complex system. The only way to have an inkling is to use something like IMD and check each head individually.
IMD says RPM are 272... should be 300 right?
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74LS244 Question

by falter on December 5th, 2018 at 01:21 PM
Quote Originally Posted by Chuck(G) View Post
Assuming that pin 1 stays high, it should be possible to "feed through" pin 8 to pin 12. But the solution ultimately will be figuring out why pin 1 stays high.
Yeah that is is the goal for sure. I just want to prove out my theory a bit. After the experience with the TVT I don't trust schematics or circuit descriptions 100%. I did try feeding through but didn't see any text appear... although I didnt type anything so maybe it would only change new text being added. I'm

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The Ebay Follies

by falter on June 25th, 2017 at 11:09 AM
All hail the $3000 Apple II+!

http://www.ebay.com/itm/142424958928
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